How To Permanently Change The Selected Boot Entry In GRUB2

A few days ago I was telling you about rebooting in Windows from Linux with GRUB 2 (or any other OS for that matter) by running a command which simply selects (highlights) a different entry in the GRUB menu for your next restart only.


So… what is ureadahead?

From the first boot in Lucid Lynx, I've seen that while Ubuntu boots, there are some messages displayed in the upper-right, like:

fsck from (...)

init: ureadahead-other main process (...) terminated with status 4

Ubuntu 9.10 Karmic Koala Can Boot in 5 Seconds From An SSD

Remember the Ubuntu Karmic Koala goal, to boot in 10 seconds? In an Arstechnica post, we are presented with a boot chart from Canonical external developer relations coordinator Jorge Castro which is simply astonishing:

Super Grub Disk Helps Linux Newbies Fix The GRUB (Boot)

Super Grub Disk is a free utility that you can run from a CD, DVD, usb drive, etc. which fixes your Linux GRUB in only three steps. Super Grub Disk allows you to boot Windows or Linux, selectively. Not only that, you can also activate inactive partitions with this software as well as hide partitions to secure them.

How To Install and Run Ubuntu 9.04 Jaunty From a USB Flash Drive

This basically makes the Live Ubuntu ISO save changes onto your USB drive by using casper-rw loop file for persistently saving and restoring changes on subsequent boots.

Ubuntu 9.10 Karmic Koala New Goal: Boot in Less than 10 Seconds

The Ubuntu development team has decided to change the plans and not include Plymouth technology for Ubuntu 9.10, which means they will keep the current USplash system. ...

Create a Bootable USB Drive or Memory Card

UNetbootin allows you to easily adapt a Linux CD image to boot off of a USB flash drive or memory card. Have a system without a CD drive? Create a bootable USB drive to run your Linux installer.

Build your own ultimate boot disc

You turn on your trusty old Linux box, and things are going well as you pass through the book loader, until the disk check reveals that your hard drive partition table is corrupt, and you are unable to access your machine. You need a good rescue disk -- and the best way to get one is to create your own.

Change settings for the bootloader and splash screen in Ubuntu

StartUp Manager, or SUM, is a gui tool for changing settings in Grub, Grub2 and Usplash.SUM should work with recent versions of Debian and Debian-based distributions such as Ubuntu.

Fix boot GUI resolution in Ubuntu

Everytime I install Ubuntu, my usplash (the boot GUI) is 640x480. So here is howto make the usplash resolution fit your display resolution:

Tweak and optimize Ubuntu Linux Boot and Application Startup times dramatically

Here I will share some methods on tweaking and optimizing your ubuntu install that I have learned over the years tweaking linux. This is small and sweet, down to the point and can dramatically speed up your system.

Booting another Grub from Grub

Chainloading an operating system allows grub to boot an opearating system's boot loader. This is commonly used to boot Windows for instance. I personnaly use it to be able to have my "production" system's grub on the MBR, and address other distros'grub install on their root partition. The advantage is that kernel updates are real easy to handle. Each testing distro modifying their own grub won't interfere with my main OS bootloader.

Drastically reduce the Ubuntu launch time with Preload

Preload – is an application that practically pre-loads or better still caches your frequently used applications with the aim of speeding up their load-time. This application that works in the background deploys only unused RAM and does not consume your system memory as imagined.

Bootchart: boot profiling

On a recent vacation my laptop boot time (>4 min.) started getting on my nerves. I resolved to enjoy the vacation but fix things on my return. At home a few minutes with Google brought bootchart to my attention.

Measuring Ubuntu's Boot Performance

In this article, we are looking at Ubuntu's boot performance for the past five releases through the use of Bootchart for measuring its boot time, disk throughput, and the running processes.

Eliminate Slow Boots Because of Disk Checking

If you have been using Ubuntu for a while, you probably know that after 30 boots Ubuntu runs a check on the hard disk. This “Fsck” check slows down booting a lot. AutoFsck runs the check on shutdown instead, and asks you if it is a good time first. If the occasional slow boot is a problem for you, AutoFsck is perfect.

How to change boot order of Ubuntu and Windows

This is for people who have a dual boot installation of Ubuntu and Window (XP or Vista). When booting you will see that Ubuntu has created a boot menu that allows you to select an OS to start. It will usually look somewhat like this:

How to clone your bootable Ubuntu install to another drive

If you’ve ever wanted to completely clone your Ubuntu install, with all of the tweaks, files you’ve downloaded and changes you’ve made to it, there’s a fairly simple way to do this. This is great if you want a complete backup, or if you’re looking to move your system to a newer (read: bigger, faster, stronger) hard drive or even just to clone your install to other machines with the same hardware.

Beautifulize the Boot Screen with Grub-GFXBoot

As you might have noticed yourself by now, the Grub screen looks quite plain, simple and dull. Even with colours or Grub themes. Gfx Boot is a powered version of GRUB Bootloader and it’s able to load themes instead of 16 colour splashes. Here are a couple of screenshots, just to get an idea about it and maybe make you want to beautifulize grub (yeah, i know it’s not a word but it sounds cool):

Howto Boot After a Failed Linux Install

Installing Ubuntu [and most other Linux distros] isn't too difficult. In fact with the latest liveCD installs it has become easier than ever before. However, it is still possible for the installation process will go wrong and fail. This has happened to me on a couple of occasions and it has left me with a system that is incapable of booting.

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